Innovative Bioreactors and Two‐Stage Systems

Nitrous Oxide Abatement Coupled with Biopolymer Production As a Model GHG Biorefinery for Cost-Effective Climate Change Mitigation

“…This study evaluated the potential biological removal of N 2 O along with the simultaneous accumulation of PHBV as a cost-effective alternative for industrial GHG emission mitigation. The bioreactors herein used have been consistently proven as low cost alternative technologies for the treatment of wastewaters and off-gases. − These bioreactor configurations are pneumatically agitated, resulting in low energy consumptions. Moreover, their simple construction (with no moving parts) and high gas–liquid mass transfer rates constitute also key advantages over their biological counterpart. − In addition, the selection of BCR and ALR configurations in this study was based on the need of a suspended culture to facilitate biomass harvesting and ensure a homogeneous methanol/nitrogen distribution.…”

“…devoted to the treatment of N 2 O emissions originated from a nitric or adipic acid production plants and one of the pioneering works on the development of GHG biorefineries. Bubble column and internal loop airlift bioreactors have been consistently proven as low cost alternative technologies for the treatment of wastewaters and off-gases [26][27][28][29]. These bioreactor configurations are pneumatically agitated, resulting in low energy consumptions.…”